Igniter for explosive-engines.



No. 849,797. I PATENTED APRQQ, 1907-;

' E .E. P. LAMB. E IGNITER FOR EXPLOSIVB ENGINES.

APPLICATION FILED 'JUNE 1, 1906. RENEWED NOV-27, 190a.

, contact is operated.

.UNITED STATES PATENT @FFIOE.

ROCIQLAND MACHINE (10.,

"[Jenn-Er: FOR EXPLOSIVIE-ENGIINES.

I Specification of Letters Patent.

Patented April 9,1907.

Application filed June 1, 19(15- Renewed November 27,1906. Serial No. 345,353;

2"!) all whom it may concern:-.

Be it known that I, ELDEN P. LAMB, a citizen of the United States, residing at Rockland, Maine, have invented certain new anduseful Improvements in Igniters for Explosive-Engines, of which the following is a specification.

The present lnvention relates to improvements in means for operating the electric 1g- 1 o niters or sparkers of explosive-engines.

The objects of the invention are to produce an extremely simple, durable, and efficient construction which shall be reliable in operation and capable of ready adjustment-while [5 the engine is running for varying the time of producing the spark.

VV'th these and other objects in view the invention includes the, various features of construction and arrangement of parts hereinafter described, rand; particularly pointed out in the claims. V The invention is illustrated in the accompanying drawings, in which Figure 1 is a plan View, Fig. .2 a front, and

2 5 Figs. 3, 4, and 5 are details.

o niter or contact-arms are, however, not described herein or shown 1n the drawings, as

they form no part of the present invention. In the wall 5 is journaled a rock-shaft 6 underspring tension, which carries on its inner end the usual movable contact and onits outer end a finger 7, whereby the movable A bolt or axle 8 is rigidly secured to the wall 5 in any suitable manner, and upon this pin is rotatably mountedan eccentric sleeve 9, secured in place by a washer 10 and nut 1 1. If desired, the'nut may be held against jar-I ring loose by a split pin 12. A rock-arm 13 is j ournaled on the eccentric sleeve, and one end 13" is adapted for connection with the operating-rod 14:, extended to and reciprobated by any suitable moving part of the enginc in the manner well understood by those Skilled in the art, I 5 A trip-dog 15 is pivotally carried by the rock-arm 13, preferably by having a laterallyarm, which is shown asjove' 7 end of which has asuitable projection on the rock-arm 13L extending pivot or shaft 16 journaled in a suitable bearing in the projecting part 13 of the arm 13. This part 13 preferably has a conical lug or extension 13, which is encircled by a similarly-shaped coiled spring, one end of 15.1mm P. LAMB, or ROCKLAND, MAINE, 'Ass GNoa TO CAMDEN ANonoR- V or ROCKIJAND, MAINE.

which may be tapped into or otherwise se-' cured to the arm, while its other end is secured to the shaft 16. A convenient manner of efiecting the connection isby hooking the end of the spring around the pin 17, which is inserted through the shaft 16.

The eccentric sleeve is provided with an annular flange, or collar18, from which pro 'jects an arm 19, which serves .as a'handle by which the, eccentric sleeve may berotated,

and thus the tiining of the fs' ark effected. The arm 19 carries means for e ecting'a looking eng e ement with a segment-20 rigidly connecte to the face ofthe cylindei. This segment is shown as formediion. a'-ring.,21,

, clamped to a: boss 22 on the by a setmay conscrew 23,. The engaging mea veniently consist of a sprin' prfessed plunger 24,.guided in a-longitudin'a the ment s purposeijgThj v vided with a plurality -'of rec s? ceive the innerend of the'jgl u n' :5

It isalso desirable to provide justing, the trip-dog15, and-. suc I consist ofa set-=screw,,15?,passin thrug rear end of -jthe dogj and bear-1n against, a

Having thus described inve f claim as new, and desire to s" 'ters Patent,- is' v Q 1. In an electric igniter fori'explosive-engines, the combination with the'latch for op .85 su etyia" crating the movable electrode, ofmeans for" tripping'such latch comprising a pin carried by the cylinder, an eccentric s on'said pin, a segment adjustably clamped. to the cylinder andlhavingga series ofradial recesses, an, arm carried sleeve, a s ring-pin carried by said arm for engaging t erecesses in the segment, and a trip-levermounted to oscillate on said eccentric sleeve, substantially as described.

2. In an explosive-engine a movable elec trode-operating latch, a circularboss on the cylinder in proximity thereto, a ring clamped to said boss and having radial recesses, a pm eevejournaled y said eccentric v projecting centrally of said boss, an eccentric In testimony whereof I affix lily signature sleeve journaleddorli "saidl pin, a-handle proin presence of two \vitnbsses.-

j ecting'from sai s .eeve mving a sprin -pin r f for engagin said recesses, a rocking trip- ELDER v AM 5 lever journa ed on said eccentric sheave; and \Vitnessos:

atrip-dog carried by said trip-lever, substa.n S.;: T. KIMBALL, tially as described. i JOHN Bnm. 

